Walking around Mile End is like checking historic points off of a neighborhood map. For decades, Montrealers have coveted their Mile End favorites like the St. Viateur bagel bakery, open 24/7 and a neighborhood staple since 1957. The old Rialto on Parc Avenue, though having gone through several ownership changes, has survived with all its charm and structural integrity since the 1920s.  And then there's Rotisserie Laurier BBQ. A neighborhood landmark since 1936, this Mile End restaurant is on its way to becoming something bigger and better. After 75 years, Rotisserie Laurier BBQ and Gordon Ramsay are about to deal some risky business.